Elbow pipe coupling



FIG. 1 is a front, right, perspective view of an elbow pipe coupling showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a left side elevational view thereof.

In the drawings, the broken line showing is to illustrate portions of the article and form no part of the claimed design. 

We claim the ornamental design for an elbow pipe coupling, as shown and described. 